... more about our ball chain:1)Available Material: Iron, Brass, Stainless steel2)Available size: 1.6mm, 2.0mm, 2.4mm, 3 ... , anti brass silver, dim nickel, anti silver etc and what's more 50types color ball chain.Usage: 1) Used for fine ... for ID badges, etc. 3) Can be seen in toilets, light/ceiling fan pulls, vertical blinds, retaining application, keychain ,ball chain ...